Effect of Temperature and Heat Treatment Status on the Ductile Fracture Toughness of 2219 Aluminum Alloy

Through measurement of fracture toughness of 2219 aluminum alloy three-point bend specimen and observation of fracture surface and microstructure at different temperature, the influences of temperature and heat treatment status on the fracture toughness of 2219 aluminum alloy are discussed. The results show that temperature has an important influence on the fracture toughness of 2219 aluminum alloy. Compared with fracture toughness in room temperature, the fracture toughness is increased by 36% at low temperature. Heat treatment status also affects fracture toughness greatly, and fracture toughness in the T62 state is better than that in the T87 state. In conclusion, the reason why enhancement of fracture toughness of 2219 aluminum alloy at low temperature appearance is concluded.

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JESSAIR

Alloy Digest ◽

10.31399/asm.ad.ts0157 ◽

1965 ◽

Vol 14 (1) ◽

Keyword(s):

Heat Treatment ◽

Fracture Toughness ◽

Low Temperature ◽

Physical Properties ◽

Heat Treating ◽

Bend Strength ◽

Steel Company ◽

Temperature Heat ◽

Temperature Heat Treatment ◽

Manganese Chromium

Abstract Jessair is a manganese, chromium, molybdenum alloy steel combining the deep harding characteristics of air-hardening steels with the simplicity of low temperature heat treatment possible in many oil-hardening steels. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and bend strength as well as fracture toughness and fatigue. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-157. Producer or source: Jessop Steel Company.

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VEGA

Alloy Digest ◽

10.31399/asm.ad.ts0023 ◽

1954 ◽

Vol 3 (8) ◽

Keyword(s):

Heat Treatment ◽

Fracture Toughness ◽

Low Temperature ◽

Physical Properties ◽

Heat Treating ◽

Temperature Heat ◽

Technology Corporation ◽

Carpenter Technology Corporation ◽

Temperature Heat Treatment ◽

Manganese Chromium

Abstract VEGA is a manganese, chromium, molybdenum alloy steel combining the deep hardening characteristics of air-hardening steels with the simplicity of low temperature heat treatment possible in many oil-hardening steels. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-23. Producer or source: Carpenter Technology Corporation.

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Changes in color characteristics of culinary products from turkey meat produced with the use of low-temperature heat treatment

Vsyo o myase ◽

10.21323/2071-2499-2020-5-22-24 ◽

2020 ◽

pp. 22-24

Author(s):

Nasonova V.V. ◽

◽

Tunieva E.K. ◽

Motovilina A.A. ◽

Mileenkova E.V. ◽

...

Keyword(s):

Heat Treatment ◽

Low Temperature ◽

Production Technology ◽

Meat Products ◽

Oxidation Products ◽

Turkey Meat ◽

Color Characteristics ◽

Low Temperature Processing ◽

Temperature Heat ◽

Temperature Heat Treatment

The paper presents the results of the study on the effect of low-temperature heat treatment on color characteristics and protein oxidation products depending on the method, temperature and duration of heat treatment of culinary products from turkey meat. At present, the use of low-temperature processing in the production technology for meat products with improved organoleptic indices is a topical direction.

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A General Strategy for the Preparation of Hollow Carbon Nanocages by NH4Cl-Assisted Low-Temperature Heat Treatment

Chemistry - A European Journal ◽

10.1002/chem.201002385 ◽

2010 ◽

Vol 16 (46) ◽

pp. 13603-13608 ◽

Cited By ~ 8

Author(s):

Shang Jun Teng ◽

Jian Nong Wang ◽

Bao Yu Xia ◽

Xiao Xia Wang

Keyword(s):

Heat Treatment ◽

Low Temperature ◽

General Strategy ◽

Temperature Heat ◽

Hollow Carbon ◽

Temperature Heat Treatment

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The Use of Optimized ERW Technique to Improve Low Temperature Fracture Toughness of Welded Pipes

Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining ◽

10.1115/ipc2020-9649 ◽

2020 ◽

Author(s):

Muhammad Rashid ◽

Timothy Hylton ◽

Neil Anderson ◽

Laurie Collins ◽

Leijun Li

Keyword(s):

Heat Treatment ◽

Fracture Toughness ◽

Low Temperature ◽

Weld Seam ◽

Peak Temperature ◽

Line Pipe ◽

Squeeze Pressure ◽

Treatment Practices ◽

Treatment Techniques ◽

Research Activities

Abstract It is understood that the bondline microstructure of the line pipe ERW seam can be a zone of weakness in the pipe. To overcome this weakness, several research projects utilizing various line pipe steel grades and welding and heat treatment techniques have been conducted at EVRAZ NA. The overall goal of these efforts has been to understand the development of bondline microstructure during the ERW process and improve the weld seam fracture toughness for low temperature applications. These research activities included mill trials and Gleeble simulations. It was realized that a high toughness ERW weld seam is only possible through a tightly controlled combination of weld power, forging (squeeze) pressure, and welding speed. Research studies have indicated that the as-welded seam may not pass the standard ERW destructive tests if proper heat input and adequate squeeze pressure are not applied. Post weld heat treatment (normalizing) practice was also found to be a key element in the development of the appropriate bondline microstructure for higher toughness. Samples from pipes normalized using different heat treatment practices produced different bondline microstructures and hence different toughness properties. It was found through this study that a low (but still higher than the upper critical temperature Ac3) normalizing peak temperature and adequate soak time at the peak temperature result in improved Charpy toughness of ERW bondline microstructure.

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